2004 NISSAN TERRANO Service Repair Manual

[Example]
(Measures taken at one side):
(1)
Angle
Specified value Measured Change
Camber angle 0É30¢ 0É5¢+0É25¢
Caster angle 1É54¢ 2É10¢þ0É16¢
The above values relate to the graph below:
Shim thickness selection graph
(2) Obtain intersection point of lines in accordance with the graph.
Front: 1.4 mm
Rear: 2.0 mm
(3) Choose shims which are nearest to the values found in the graph:Front: 1.6 mm
Rear: 2.0 mm
(4) If shim thicknesses as calculated appear not to be available, combinations of different shims should be used to meet the
desired total thickness of the shims.
EFA015
CHECK AND ADJUSTMENT
Front Wheel Alignment (Cont'd)
FA-10
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TOE-IN
1. Mark a base line across the tread.
After lowering front of vehicle, move it up and down to elimi-
nate friction, and set steering wheel in straight ahead position.
2. Measure toe-in.
Measure distance ªAº and ªBº at the same height as hub cen-
ter.Toe-in (Unladen):Refer to SDS, FA-39.
Toe-in = A þ B
3. Adjust toe-in by varying the length of steering tie-rods.
(1) Loosen clamp bolts or lock nuts.
(2) Adjust toe-in by turning the left and right tie-rod tubes an equal amount.
Make sure that the tie-rod bars are screwed into the tie-rod
tube more than 32.5 mm (1.280 in).
Make sure that the tie-rods are the same length. Standard length (A = B):287 mm (11.30 in)
(3) Tighten clamp bolts or lock nuts, to the specified torque.
SMA123
EFA010
EFA011
YFA018
YFA019
CHECK AND ADJUSTMENT
Front Wheel Alignment (Cont'd)
FA-11
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FRONT WHEEL TURNING ANGLE
1. Set wheels in straight ahead position and then move vehicleforward until front wheels rest on turning radius gauge properly.
2. Rotate steering wheel all the way right and left; measure turn- ing angle.Wheel turning angle: Refer to SDS, FA-39.
3. Adjust by stopper bolt if necessary. Standard length ªL
2º:
26.5 mm (1.043 in)
Drive Shaft
I Check for grease leakage or other damage.
SMA127
SFA898
EFA016
SFA901
CHECK AND ADJUSTMENT
Front Wheel Alignment (Cont'd)
FA-12
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YFA020
FRONT AXLE
FA-13
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Removal and Installation
ISet the auto-lock free-running hub at the condition ªFreeº.
I Remove auto-lock free-running hub with brake pedal
depressed.
I Remove snap ring.
I Remove washer B, washer A and brake B.
I After installing auto-lock free-running hub, check operation.
When installing it, apply recommended grease to drive shaft
end.
Inspection
Thoroughly clean parts and dry with compressed air.
Brake ªAº and ªBº
Measure the thickness ªLº of brake ªAº and ªBº.
If thickness is less than the specified limit, replace brake ªAº and
ªBº as a set. Wear limit ªLº = 15.4 mm (0.606 in)
YFA016
SFA827
SFA829
SFA548
FRONT AXLE Ð Auto-lock Free-running Hub
FA-14
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Trouble-shooting
Noise occurring in the auto hub under any of the conditions
described is not indicative of a problem. Noise can be eliminated
by properly operating the transfer lever of the vehicle.
Noise
Was the transfer lever shifted from
the ª2Hº to the ª4Hº position while
the vehicle was operated at a
speed greater than 40 km/h (25
MPH)?
No
EYe sShifting the transfer lever from the
ª2Hº to the ª4Hº position in high-
speed operation (Fig.
,Fig.
), is sometimes difficult. At this
point, a clattering occurs in the
auto hub. If shifting is stopped
halfway, the drive shaft no longer
rotates and the cam is held in the
ªLOCKº position (Fig.
). In this
case, the noise will continue until
the vehicle is stopped. When this
occurs, decrease vehicle speed to
less than 40 km/h (25 MPH),
return the transfer lever to the
ª2Hº position once and then
reshift to the ª4Hº position.
Gears will then be engaged and
the noise will cease (Fig.
).
Was the transfer lever shifted from
the ª2Hº to the ª4Hº position while
the vehicle was operated at a
speed less than 40 km/h (25
MPH)?
No
EYe s When noise occurs in the auto
hub while shifting from the ª2Hº to
the ª4Hº position (Fig.
,Fig.
), do not stop shifting halfway.
When shifted to the ª4Hº position,
the ª4WDº pilot lamp will come on
to indicate that the gears are
engaged properly and that the
vehicle is set in the 4WD mode.
Noise will then cease (Fig.
). If
shifting is stopped halfway, noise
will continue.
In such a case, return the transfer
lever to the ª2Hº position once
and re-shift it to the ª4Hº position.
Gears will then be engaged and
the noise will cease (Fig.
). (If
the lever is left in the ª2Hº
position, the noise will continue
until the vehicle is stopped.)
qA
SFA516A
SFA517A
SFA518A
H
H
H
FRONT AXLE Ð Auto-lock Free-running Hub
FA-15
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qA
Was the vehicle started after the
transfer lever was shifted from the
ª2Hº to the ª4Hº or ª4Lº position?
No
EYe sA clicking noise can sometimes
occur in the auto hub when the
gears are engaged. This is not a
problem.
Noise can be encountered during
rapid acceleration while rear
wheels are slipping on snowy
roads, muddy roads, slopes, etc.
(Fig.
,Fig.).
In such a case, release the accel-
erator pedal to reduce engine
speed. Gears will then be
engaged and the noise will cease
(Fig.
).
Was the vehicle backed up when
the transfer lever was in the ª4Hº
or the ª4Lº position, or was the
vehicle backed up while on a
downgrade when the transfer
lever was in the ª4Hº or the ª4Lº
position?
No
EYe s When backing up the vehicle with
the transfer in the ª4Hº or the ª4Lº
position, auto-hub gears some-
times disengage but soon reen-
gage (Fig.
,Fig.,Fig.
) with a clicking noise. This is
not a problem. Noise will also
occur if the vehicle is accelerated
rapidly while the gears are disen-
gaged. In such a case, release the
accelerator pedal once to
decrease engine speed. Gears will
then be engaged and the noise
will cease (Fig.
).
Was the vehicle turned on a dry
pavement, when the transfer lever
was in the ª4Hº or the ª4Lº posi-
tion?
No
EYe s Under these conditions, noise
occurs in tires (creaking) or in the
power train (rattling) Ð not in the
auto hub.
Avoid driving in the conditions
described above as it may lead to
tire wear.
qB
SFA519A
SFA520A
SFA521A
SFA522A
SFA523A
H
H
H
H
FRONT AXLE Ð Auto-lock Free-running Hub
Trouble-shooting (Cont'd)
FA-16
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qB
Was the vehicle moved in one
direction after the vehicle was
driven in another direction when
the transfer lever was in the ª4Hº
or the ª4Lº position and then
returned to the ª2Hº position?
No
EYe sAuto-hub gears will disengage
with a resultant noise (clicking). If
the distance the vehicle is moved
in the opposite direction is short
[less than1m(3ft)] or if the rota-
tion angle of the left and right
wheels is not the same (as in
rounding a corner), gears on one
side will disengage (Fig.
).
Under this condition, a noise
(crushing, etc.) might occur while
driving in the ª2Hº position. If only
gears on one side are unlocked,
the locked drive shaft rotates at
the same speed as wheels;
however, the unlocked drive shaft
is made to rotate in the reverse
direction by the differential. This
forces by auto hub's slide gear to
lock in the reverse direction. As a
result, noise occurs.
If this happens, slowly move the
vehicle straight back approxi-
mately 2 to3m(7to10ft) with
the transfer lever in the ª2Hº posi-
tion to disengage the gears on the
other side.
Was the vehicle driven with the
transfer lever in the ª2Hº position
in extremely cold weather?
No
EYe s In extremely cold weather (areas),
the viscosity of differential oil is
greater than in moderate weather.
When the auto hubs are unlocked
with the transfer lever set to the
ª2Hº position, one auto hub can
sometimes remain locked.
This causes noise during opera-
tion. Noise can also occur in the
auto hub when the front propeller
shaft is rotated due to the viscos-
ity resistance of the transfer fluid
(Fig.
).
In such a case, drive in the ª4Hº
position for approximately 10 min-
utes until the vehicle warms up,
and return the transfer lever to the
ª2Hº position to eliminate the
noise.
Disassemble and check the auto
hub.
(Refer to ªRemoval and
Installationº, FA-18.)
NFA005
SFA525A
H
H
H
FRONT AXLE Ð Auto-lock Free-running Hub
Trouble-shooting (Cont'd)
FA-17
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